University Physics (14th Edition)
14th Edition
ISBN: 9780133969290
Author: Hugh D. Young, Roger A. Freedman
Publisher: PEARSON
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Chapter 5, Problem 5.97P
Block A, with weight 3w, slides down an inclined plane S of slope angle 36.9° at a constant speed while plank B, with weight w, rests on top of A. The plank is attached by a cord to the wall (Fig. P5.97). (a) Draw a diagram of all the forces acting on block A. (b) If the coefficient of kinetic friction is the same between A and B and between S and A, determine its value.
Figure P5.97
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Block A in Fig. P5.72 weighs 60.0 N. The coefficient of static friction between the block and the surface on which it rests is 0.25. The weight w is 12.0 N and the system is in equilibrium.
(a) Find the friction force exerted on block A.
(b) Find the maximum weight w for which the system will remain in equilibrium.
Block A in Fig. P5.72 weighs 60.0 N. The coefficient of static friction between the block and the surface on which it rests is 0.25. The weight w is 12.0 N and the system is in equilibrium.
(a) Find the maximum weight w for which the system will remain in equilibrium.
(b) Find the friction force exerted on block A.
Show the complete solution and draw the free diagrams.
In the system shown in Figure P5.23, a horizontal force Facts on an object of mass m2 = 8.00 kg . The horizontal surface is frictionless. Consider the acceleration of the sliding object as a function of F. (a) For what values of F, does the object of mass m = 2.00 kg accelerate upward? Answer! (b) For what values of F, is the tension in the cord zero? Answer! () Plot the acceleration of the m, object versus F. Include values of F, from - 100 N to +100 N. SNIPP
Chapter 5 Solutions
University Physics (14th Edition)
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